OAKLAND (AP) Tanner Roark struck out seven and didn't walk a batter over six-plus innings, Yankees starter Masahiro Tanaka struggled early and the Oakland Athletics beat New York 5-3 Thursday night for a three-game series sweep.
Mark Canha hit a two-run single as the A's immediately jumped on Tanaka (9-7) en route to a seventh victory in eight overall.
In less than a week, the A's have taken down a pair of AL contenders in impressive fashion.
Oakland is on another of its familiar second-half surges, moving a season-best 21 games over .500 at 74-53 having won three of four against first-place Houston and then three straight over the AL East-leading Yankees.
New York's Gleyber Torres homered twice for his 30th and 31st of the year, a solo shot in the seventh and another in the ninth.
Oakland has won three of Roark's four starts since he was acquired from Cincinnati. Roark (2-1) allowed two runs and seven hits in 6 1/3 innings.
Torres also doubled and singled for the Yankees, who have lost nine of their last 10 and 21 of 28 in Oakland.
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Tanaka, making his team-leading 26th start and pitching on an extra day of rest, dug himself an early hole allowing Marcus Semien's leadoff double in the first, then giving up a pair of walks before an RBI groundout by Matt Olson and Canha's base hit.
Matt Chapman added an RBI single and Stephen Piscotty drove in a run on a groundout.
Tanaka allowed five runs over six innings, striking out five and walking two.
Joakim Soria surrendered Torres' two-out drive but finished for his first save in five chances as Liam Hendriks got a break from the ninth inning after a five-out save Wednesday.
